It may be that this mortal existence is the only flash of eternity where we are allowed to have a veil over our minds and are allowed to experience incompleteness, pain, and sorrow, which give us such richness of experience. From this view, then, perhaps feeling lonely would not be seen as a disease condition but rather as one of the very purposes for being alive.
Pain, sorrow, suffering, and evil, then, may not be deficits to be overcome, controlled, removed, or eradicated, but rather they may be gifts from a benevolent Father that can serve as instruments for developing a divine nature. We may perhaps go so far as to see the traditionally tragic elements of life as the very tools of the trade in the construction of heavenly mansions.